2 Corinthians 2:14-3:3 (Today's New International Version)

¹⁴ But thanks be to God, who always leads us as captives in Christ's triumphal procession and uses us to spread the aroma of the knowledge of him everywhere. ¹⁵ For we are to God the pleasing aroma of Christ among those who are being saved and those who are perishing. ¹⁶ To the one we are an aroma that brings death; to the other, an aroma that brings life. And who is equal to such a task? ¹⁷ Unlike so many, we do not peddle the word of God for profit. On the contrary, in Christ we speak before God with sincerity, as those sent from God.

2 Corinthians 3

 ¹ Are we beginning to commend ourselves again? Or do we need, like some people, letters of recommendation to you or from you? ² You yourselves are our letter, written on our hearts, known and read by everyone. ³ You show that you are a letter from Christ, the result of our ministry, written not with ink but with the Spirit of the living God, not on tablets of stone but on tablets of human hearts.